Thunderbird
thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. the project strategy is modeled after mozilla firefox.
Mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and calendars. Mulberry also helps you manage other related information, such as contact information.
mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and calendars. mulberry also helps you manage other related information, such as contact information.
to ensure maximum compatibility with existing email servers, mulberry uses internetstandard protocols: imap and pop3 for reading email messages, smtp for sending email messages, mime for sending and receiving attachments within messages, imsp and acap for storage of preferences and address books on a remote server, and ldap for address lookups. it also uses http, webdav and caldav for storing and retrieving calendar data.
email-client imap pop3 calendar sync-calendars Discontinued caldav calendaring mailer
thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. the project strategy is modeled after mozilla firefox.
Free Open Source Windows Linux BSD Mac Haiku
Part of the Microsoft Office Suite, Outlook is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.
Commercial Mac OS X Windows Android iPhone Android Tablet iPad Web Windows Phone
Opera Mail powerfully organizes, indexes, and sorts your messages. It has spam filtering (both automated and Bayesian), supports POP3 and IMAP, newsgroups as well as Atom and RSS feeds.
Free Mac OS X Windows
Claws Mail is an email client (and news reader), based on GTK+, featuring Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility ...
Free Open Source Windows Linux BSD Xfce
Newton is a fully featured mail client available for Android, iOS, macOS and Windows. Works for watch too. It's based on cloud so you can connect it to any account and get fast search, push notifications, read receipts (PREMIUM), etc .
Commercial Mac OS X Windows Android iPhone Android Tablet iPad Windows RT Apple Watch
KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE.
Free Open Source Mac OS X Windows Linux BSD
windows 10 has mail and calendar apps already built in.
Free Windows Windows RT